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36 terms

Anatomy anterior thigh compartment muscles

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pectineus origin
superior ramus of pubis
pectineus insertion
pectineal line of femur, just inferior to lesser trochanter
pectineus innervation
femoral nerve (L2)
pectineus action
adducts and flexes thigh and medial rotation
psoas major origin
sides of T12-L5 vertebrae and discs between then; TPs of all lumbar vertebrae
psoas major insertion
lesser trochanter of femur
psoas major innervation
anterior rami of lumbar nerves (L1/2)
psoas major action
flexes thigh at hip joint and stabilizes the hip
psoas minor origin
sides of T12-L1 vertebrae and discs between them
psoas minor insertion
pectineal line, iliopectineal eminence via iliopectineal arch
psoas minor innervation
anterior rami of lumbar nerves
psoas minor action
flexes thigh at hip joint and stabilizes the hip
iliacus origin
iliac crest; iliac fossa; ala of sacrum and anterior sacroiliac ligaments
iliacus insertion
tendon of psoas major; lesser trochanter, and femur distal to it
iliacus innervation
femoral nerve(L2)
iliacus action
flexes thigh at hip joint and stabilizes the hip
iliopsoas
combination of the psoas major and the iliacus
sartorius origin
ASIS and superior part of notch inferior to it
sartorius insertion
superior part of medial surface of tibia
sartorius innervation
femoral nerve
sartorius action
flexes, abducts and laterally rotates thigh at hip joint; flexes leg at knee joint
rectus femoris origin
AIIS and ilium superior to acetabulum
rectus femoris insertion
via common quadriceps tendon
rectus femoris innervation
femoral nerve (L3,4)
rectus femoris action
extend leg at knee joint and steadies hip joint and helps iliopsoas flex thigh
vastus lateralis origin
greater trochanter and lateral lip of linea aspera of femur
vastus lateralis insertion
via common quadriceps tendon
vastus lateralis innervation
femoral nerve (L3,4)
vastus lateralis action
extend leg at knee joint
vastus medialis origin
intertrochanteris line and medial lip of linea aspera of femur
vastus medialis insertion
via common quadriceps tendon
vastus medialis innervation
femoral nerve (L3,4)
vastus medialis action
extend leg at knee joint
vastus intermedius origin
anterior and lateral surfaces of shaft of femur
vastus intermedius insertion
via common quadriceps tendon
vastus intermedius action
femoral nerve (L3,4)